Logging your moves to the microSD card

Update your firmware to the latest Beta. At the time of this writing it is RC_007_40.

Insert your microSD card that came with your spectrum ST4. Many cards will work that are formatted FAT32, but getting every card to work may not be possible. Stick with the SD card that came with the spectrum. We test these before they go out.*Another reminder, add a "tape tail" to any card you put into the spectrum to make fishing it out easier!

Insert the microSD Card.

Power on the spectrum.

Set up a programmed move.

On the return to start, the spectrum is writing the full move to the SD card under the LOG folder.

Naming convention is: "LOG/ST4Log_versionMajorversionMinor_fileIndex"

How do I read the file?

Pull out the card (powering down is better, but not required). Important Note - Once the card is removed, you will have to power cycle the spectrum for it to log moves again!

Put it in a reader on your computer.

Open the SD card and the LOG folder.

Pick out the last file and open it.

In that file you will see a header with the filename and a row for each of the frames positions.

What does it look like and how can I interpret the numbers?

Each row in the file is a value of the motor position at each frame. There are 5 values in each row: frame number, Pan Value, Tilt Value, M3 Value, M4 Value.

For example, here are the first few rows of a log file (attached as an example):LOG/ST4Log_738_285.txt